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Polio Vaccine

By Eliannap
  • 1952

    1952

    Polio becomes a feared disease worldwide. Polio was a very contagious disease that can cause death.
  • Salk Vaccine Trials

    Salk Vaccine Trials

    Salk vaccine trials began with gruops of children. On the basis of these trials Sabi's vaccine was found with a longer-lasting immunity.
  • Vaccine Approved

    Vaccine Approved

    Salk vaccine was successful. The vaccine was declared 90% effective, the effectiveness of the
    vaccine caused a mass vaccination campaign.
    the polio vaccine reach the U.S
    https://texashistory.unt.edu/ark:/67531/metapth1333576/m1/2/?q=polio%20vaccine
  • Sabin Oral Vaccine

    Sabin Oral Vaccine

    Sabin invented a oral vaccine. The oral Vaccine cost lest than the Salk vaccine and it had long term effecacy.
  • Oral Vaccine

    Oral Vaccine

    The world was using Sabin's oral vaccine because of its lower cost and long term effecacy.